Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and view other reports go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	2487
interventional	1779
Observational	606
Registry	102

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Device	344
Drug	332
Drug\|placebo	285
Other	241
Behavioral	218
Procedure	88
Device\|Other	34
Drug\|Other	22
Biological	20
Behavioral\|Other	18
Diagnostic Test	18
Dietary Supplement	18
Drug\|Procedure	17
Dietary Supplement\|placebo	15
Device\|Drug	14
Device\|Procedure	12
Other\|Procedure	9
Biological\|placebo	6
Other\|placebo	6
Biological\|Other	5
Behavioral\|Drug	4
Combination Product	4
Dietary Supplement\|Other	4
Drug\|Other\|placebo	4
Behavioral\|Device	3
Radiation	3
Behavioral\|Procedure	2
Biological\|Drug	2
Biological\|Procedure	2
Combination Product\|Other	2
Device\|Diagnostic Test	2
Genetic\|placebo	2
Behavioral\|Diagnostic Test\|Other	1
Behavioral\|Dietary Supplement	1
Behavioral\|Dietary Supplement\|Other	1
Behavioral\|placebo	1
Biological\|Device	1
Biological\|Diagnostic Test	1
Device\|Diagnostic Test\|Procedure	1
Device\|Drug\|Other	1
Device\|Drug\|Other\|placebo	1
Device\|Drug\|Procedure	1
Device\|Other\|Procedure	1
Device\|placebo	1
Device\|Radiation	1
Diagnostic Test\|Drug	1
Diagnostic Test\|Drug\|placebo	1
Diagnostic Test\|Other	1
Diagnostic Test\|Procedure	1
Diagnostic Test\|Procedure\|Radiation	1
Dietary Supplement\|Drug\|placebo	1
Drug\|Genetic\|Other\|placebo\|Procedure	1
Drug\|Other\|placebo\|Procedure\|Radiation	1
Other\|Radiation	1
placebo	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country	Study_Count
United States	665
NA	120
France	69
United Kingdom	65
Canada	64
Germany	62
Brazil	49
Italy	48
Denmark	40
Spain	33
Japan	32
China	27
Netherlands	27
United States\|Canada	26
Sweden	20
Israel	15
Australia	14
Belgium	14
Norway	14
Switzerland	14
Poland	13
Taiwan	12
Korea, Republic of	10
Austria	9
Russian Federation	7
Turkey	7
Egypt	6
Mexico	6
Finland	5
Greece	5
Iran, Islamic Republic of	5
United States\|Germany	5
Colombia	4
India	4
Portugal	4
Argentina	3
Czechia	3
Hong Kong	3
Indonesia	3
Ireland	3
Singapore	3
Canada\|Finland	2
Cyprus	2
Czechia\|Poland	2
Germany\|Poland	2
Kenya	2
Paraguay	2
Romania	2
Slovenia	2
Tunisia	2
United States\|Australia\|Canada\|Germany\|Greece\|Italy\|Norway\|Poland\|Portugal\|Spain\|Sweden	2
United States\|Canada\|United Kingdom	2
United States\|New Zealand	2
United States\|United Kingdom	2
Argentina\|Brazil\|Croatia\|Georgia\|Israel\|Italy\|Lebanon\|Netherlands\|Poland\|Romania\|Singapore\|Spain\|Sweden\|Ukraine\|United Kingdom	1
Argentina\|Germany\|Italy\|Netherlands\|Poland\|Russian Federation	1
Armenia\|Georgia\|Moldova, Republic of	1
Australia\|Austria\|Belgium\|Czechia\|Denmark\|France\|Germany\|Netherlands\|New Zealand\|Poland\|United Kingdom	1
Australia\|Austria\|Canada\|Czechia\|Germany\|Kazakhstan	1
Australia\|Austria\|Czech Republic\|Denmark\|Germany\|Israel\|Latvia	1
Australia\|Austria\|France\|Germany\|United Kingdom	1
Australia\|Austria\|Germany\|Hungary\|Netherlands\|Poland\|Russian Federation\|United Kingdom	1
Australia\|Belgium\|Canada\|Denmark\|Germany\|Netherlands\|Turkey	1
Australia\|Canada\|Chile\|Mexico\|New Zealand	1
Australia\|Czech Republic\|Finland\|France\|Germany\|Netherlands\|Switzerland\|United Kingdom	1
Australia\|Czechia\|Denmark	1
Australia\|Czechia\|France\|Germany\|Italy\|Lithuania\|Poland\|Portugal\|Spain\|Sweden	1
Australia\|Czechia\|France\|Germany\|Netherlands\|New Zealand\|Poland\|United Kingdom	1
Australia\|Germany	1
Australia\|Germany\|Italy\|Netherlands\|New Zealand\|Romania	1
Australia\|Germany\|Malaysia\|New Zealand\|United Kingdom	1
Australia\|Hong Kong\|Japan	1
Australia\|Ireland\|Netherlands\|New Zealand\|Sweden\|United Kingdom	1
Austria\|Bulgaria\|Germany\|Greece\|Hungary\|Israel\|Italy\|Poland\|Portugal\|Spain	1
Austria\|Finland\|Germany\|India\|Italy\|Netherlands\|Norway\|Slovakia	1
Austria\|France\|Italy	1
Austria\|Germany	1
Belarus\|Belgium\|Czechia\|France\|Italy\|Lithuania\|Netherlands\|Poland\|United Kingdom	1
Belgium\|Bulgaria\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Hungary\|Ireland\|Netherlands\|Norway\|Poland\|Portugal\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Belgium\|Bulgaria\|Czechia\|Denmark\|Estonia\|Finland\|France\|Germany\|Greece\|Iceland\|Ireland\|Latvia\|Lithuania\|Netherlands\|Norway\|Poland\|Spain\|Sweden\|United Kingdom	1
Belgium\|Bulgaria\|France\|Hungary\|Latvia\|Netherlands\|Poland\|Serbia\|Spain\|United Kingdom	1
Belgium\|Bulgaria\|Hungary\|Israel\|Italy\|Poland\|Serbia\|Spain\|Switzerland	1
Belgium\|Canada\|Finland\|France\|Germany\|India\|Israel\|Italy\|Netherlands\|Poland\|Spain\|Switzerland\|United Kingdom	1
Belgium\|Canada\|France\|Hungary\|Italy\|Netherlands\|United Kingdom	1
Belgium\|Croatia\|Latvia	1
Belgium\|Czechia\|France\|Germany\|Italy\|Netherlands\|Spain\|United Kingdom	1
Belgium\|Denmark\|Germany\|Italy\|Luxembourg\|Netherlands\|Norway	1
Belgium\|France\|Norway\|Serbia	1
Belgium\|Georgia	1
Belgium\|Germany	1
Belgium\|Germany\|Ireland	1
Belgium\|Germany\|Italy\|Slovakia\|United Kingdom	1
Belgium\|Germany\|Poland\|Romania	1
Belgium\|Ireland	1
Belgium\|Israel	1
Belgium\|Israel\|Poland\|United Kingdom	1
Belgium\|Italy	1
Belgium\|Norway	1
Belgium\|Serbia	1
Belgium\|South Africa	1
Belgium\|Taiwan	1
Belgium\|United Kingdom	1
Belgium\|United States\|Australia\|Austria\|Bulgaria\|Canada\|China\|Czech Republic\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Poland\|Portugal\|Singapore\|Spain\|Sweden\|Switzerland\|Taiwan\|United Kingdom	1
Brazil\|Bulgaria\|Germany\|Spain\|Switzerland	1
Brazil\|Canada\|Sweden\|Taiwan	1
Brazil\|Greece\|Poland\|Spain\|United States\|Argentina\|Australia\|Bulgaria\|Canada\|China\|Czechia\|Denmark\|Estonia\|France\|Germany\|Hungary\|Japan\|Korea, Republic of\|Latvia\|Lithuania\|Malaysia\|Mexico\|Netherlands\|Portugal\|Romania\|Russian Federation\|Slovakia\|South Africa\|Sweden\|Turkey\|Ukraine\|United Kingdom	1
Bulgaria	1
Cameroon	1
Cameroon\|China\|India\|Kenya\|Lebanon\|Mozambique\|Nigeria\|Philippines\|Saudi Arabia\|Sudan\|Uganda\|United Arab Emirates\|Zambia	1
Canada\|France\|Germany\|Italy	1
Canada\|Malaysia\|Sweden	1
China\|Hong Kong\|Japan\|Korea, Republic of	1
Croatia\|Czechia\|Israel\|Latvia\|United States\|Argentina\|Australia\|Austria\|Belarus\|Bosnia and Herzegovina\|Brazil\|Bulgaria\|Canada\|Colombia\|Denmark\|Estonia\|Georgia\|Germany\|Greece\|Hungary\|Lithuania\|Mexico\|Netherlands\|North Macedonia\|Peru\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Serbia\|Slovakia\|South Africa\|Spain\|Turkey\|Ukraine\|United Kingdom	1
Czech Republic\|Denmark\|Estonia\|Germany\|Greece\|Guatemala\|India\|Italy\|Latvia\|Lithuania\|Poland\|Romania\|Russian Federation\|Singapore\|Slovakia	1
Czech Republic\|France\|Italy\|Netherlands\|Serbia\|Slovakia\|United Kingdom	1
Czechia\|Denmark\|Kazakhstan	1
Czechia\|Georgia	1
Denmark\|Germany\|Italy\|Netherlands\|Switzerland	1
Denmark\|Norway\|United Kingdom	1
El Salvador\|Guatemala	1
Estonia\|Slovenia\|Spain\|Sweden\|United Kingdom	1
Estonia\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Colombia\|Costa Rica\|Czech Republic\|Denmark\|Dominican Republic\|Finland\|France\|Germany\|Greece\|India\|Ireland\|Italy\|Japan\|Korea, Republic of\|Latvia\|Lithuania\|Mexico\|Netherlands\|Norway\|Peru\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Thailand\|Turkey\|United Kingdom\|Venezuela	1
France\|Argentina\|Austria\|Colombia\|Hungary\|Israel\|Mozambique\|Nigeria\|Russian Federation\|Slovakia\|South Africa\|Tunisia	1
France\|Argentina\|Belgium\|Canada\|Czechia\|Germany\|Italy\|Lebanon\|Norway\|Poland\|Portugal\|Russian Federation\|Saudi Arabia\|Slovakia\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
France\|Australia\|Czechia\|Denmark\|Finland\|Germany\|Netherlands\|Norway\|Sweden\|Switzerland\|United Kingdom	1
France\|Germany\|Ireland\|Italy\|Netherlands\|United Kingdom	1
France\|Germany\|Italy\|Netherlands\|Portugal\|Spain	1
France\|Germany\|Italy\|Netherlands\|Spain\|United Kingdom	1
France\|Italy\|Portugal\|Spain	1
France\|Martinique	1
France\|Sweden	1
France\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|Colombia\|Czechia\|Denmark\|Germany\|Greece\|Hungary\|Ireland\|Israel\|Italy\|Mexico\|Netherlands\|Norway\|Peru\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
France\|United States\|Bulgaria\|Czechia\|Georgia\|Hungary\|Poland\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
Georgia	1
Georgia\|Slovenia	1
Georgia\|Ukraine	1
Germany\|Austria\|Belgium\|Czech Republic\|Denmark\|Finland\|Israel\|Norway\|Poland\|Sweden	1
Germany\|Hungary\|Italy\|Poland\|Portugal\|Serbia\|Slovenia\|Spain	1
Germany\|Hungary\|Spain	1
Germany\|India\|Peru	1
Germany\|Israel\|Spain	1
Germany\|Italy	1
Germany\|Italy\|Netherlands\|Poland	1
Germany\|Italy\|Netherlands\|Serbia	1
Germany\|Italy\|United States\|Argentina\|Belgium\|Brazil\|Canada\|Czech Republic\|France\|Netherlands\|Norway\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Germany\|Lithuania	1
Germany\|Poland\|Russian Federation	1
Germany\|Serbia	1
Germany\|Spain\|Switzerland	1
Germany\|Sweden	1
Germany\|Switzerland	1
Germany\|United States\|Argentina\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Colombia\|Czechia\|Denmark\|Estonia\|France\|Guatemala\|Hungary\|India\|Israel\|Italy\|Latvia\|Lithuania\|Mexico\|Netherlands\|Peru\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Serbia\|Slovakia\|Spain\|Thailand\|Turkey\|United Kingdom	1
Greece\|Italy\|Argentina\|Germany\|Norway\|Poland\|Romania\|Russian Federation\|Spain\|Ukraine	1
Greece\|Poland	1
Hungary\|Poland	1
Hungary\|United States\|Argentina\|Belgium\|Brazil\|Canada\|Colombia\|Czech Republic\|Finland\|France\|Germany\|India\|Israel\|Italy\|Philippines\|Poland\|Romania\|Russian Federation\|Singapore\|Slovakia\|Spain\|Sweden\|Taiwan\|Turkey	1
Ireland\|Netherlands	1
Israel\|Germany\|Hungary\|United States\|Belgium\|Denmark\|Netherlands\|Poland\|Sweden\|United Kingdom	1
Italy\|Latvia\|United States\|Argentina\|Belgium\|Brazil\|Canada\|Czechia\|Estonia\|Finland\|France\|Germany\|Hungary\|Israel\|Lithuania\|Netherlands\|Poland\|Romania\|Serbia\|Spain\|Switzerland\|Turkey	1
Italy\|Netherlands\|United Kingdom	1
Italy\|Switzerland	1
Italy\|United Kingdom	1
Japan\|United States\|Brazil\|Canada\|Denmark\|Korea, Republic of\|Slovakia\|South Africa\|Sweden	1
Kazakhstan	1
Malta\|Belgium\|Croatia\|Cyprus\|Denmark\|Estonia\|France\|Hungary\|Israel\|Italy\|Latvia\|Lithuania\|Norway\|Poland\|Portugal\|Russian Federation\|Slovenia\|Spain	1
Mozambique\|Philippines\|Uganda	1
Netherlands\|United Kingdom	1
Panama	1
Poland\|Russian Federation	1
Poland\|Russian Federation\|Slovenia	1
Poland\|Slovakia\|Spain\|Sweden\|United Kingdom	1
Poland\|United States\|Australia\|Austria\|Bulgaria\|Canada\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Korea, Republic of\|Lithuania\|Netherlands\|Norway\|Portugal\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey	1
Serbia	1
Serbia\|United States\|Australia\|Austria\|Belgium\|Canada\|Denmark\|Germany\|Greece\|Hong Kong\|Hungary\|Italy\|Japan\|Netherlands\|Norway\|Russian Federation\|Saudi Arabia\|Spain\|Sweden	1
Spain\|Sweden\|United Kingdom	1
Spain\|Switzerland\|Japan\|Netherlands\|Norway\|United States\|Austria\|Denmark\|Germany\|Greece\|Italy\|United Kingdom	1
Sweden\|United States	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|China\|Colombia\|Czechia\|Denmark\|France\|Germany\|Greece\|Hungary\|Italy\|Japan\|Lithuania\|Mexico\|Netherlands\|New Zealand\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|Czechia\|Denmark\|Estonia\|Finland\|France\|Germany\|Hong Kong\|Hungary\|India\|Israel\|Italy\|Latvia\|Lithuania\|Mexico\|Netherlands\|Norway\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Chile\|Czechia\|Denmark\|Finland\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Korea, Republic of\|Latvia\|Lithuania\|Netherlands\|New Zealand\|Poland\|Portugal\|Romania\|Russian Federation\|Slovakia\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Bulgaria\|Canada\|Germany\|Korea, Republic of\|Russian Federation\|Slovakia	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|China\|Colombia\|Czechia\|Germany\|Hungary\|India\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Romania\|Singapore\|South Africa\|Spain\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Hungary\|India\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|Czech Republic\|Denmark\|France\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Mexico\|Netherlands\|Norway\|Poland\|Portugal\|Russian Federation\|South Africa\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Bulgaria\|Canada\|Croatia\|France\|Germany\|Italy\|Korea, Republic of\|Lithuania\|Netherlands\|Poland\|Russian Federation\|Spain\|Switzerland\|Taiwan\|Turkey\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Canada\|Chile\|Denmark\|Greece\|Hungary\|Israel\|Poland\|Portugal\|Romania\|South Africa\|Sweden	1
United States\|Argentina\|Australia\|Belgium\|Canada\|Czechia\|France\|Germany\|Greece\|Hong Kong\|Hungary\|India\|Ireland\|Italy\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Portugal\|Russian Federation\|Singapore\|Slovakia\|South Africa\|Spain\|Sweden\|Ukraine\|United Arab Emirates\|United Kingdom\|Venezuela	1
United States\|Argentina\|Australia\|Brazil\|Bulgaria\|Canada\|Chile\|China\|Colombia\|France\|Germany\|Greece\|India\|Israel\|Korea, Republic of\|Lithuania\|Malaysia\|Mexico\|Netherlands\|New Zealand\|Norway\|Poland\|Russian Federation\|Singapore\|Sweden\|Taiwan\|Thailand\|Ukraine	1
United States\|Argentina\|Australia\|Brazil\|Bulgaria\|Canada\|Czech Republic\|Finland\|France\|Germany\|India\|Israel\|Italy\|Netherlands\|Poland\|Romania\|Russian Federation\|Sweden	1
United States\|Argentina\|Austria\|Belgium\|Bulgaria\|Canada\|Colombia\|Germany\|Greece\|Hungary\|Israel\|Italy\|Japan\|Malaysia\|Poland\|Portugal\|Russian Federation\|Singapore\|South Africa\|Spain\|Taiwan	1
United States\|Argentina\|Austria\|Brazil\|Bulgaria\|Czechia\|Denmark\|France\|Germany\|Hungary\|Israel\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|United Kingdom	1
United States\|Argentina\|Austria\|Bulgaria\|Canada\|China\|Croatia\|Czechia\|Finland\|France\|Germany\|Hungary\|India\|Israel\|Italy\|Japan\|Jordan\|Korea, Republic of\|Lebanon\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Saudi Arabia\|Singapore\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Thailand\|Turkey	1
United States\|Argentina\|Austria\|Bulgaria\|Denmark\|France\|Germany\|Hungary\|Israel\|Poland\|Romania\|Russian Federation\|Sweden\|United Kingdom	1
United States\|Argentina\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|Czechia\|Denmark\|Estonia\|Finland\|France\|Germany\|Guatemala\|Hong Kong\|Hungary\|India\|Israel\|Italy\|Korea, Republic of\|Latvia\|Lithuania\|Malaysia\|Mexico\|Netherlands\|Panama\|Peru\|Philippines\|Poland\|Portugal\|Romania\|Russian Federation\|Singapore\|Slovakia\|South Africa\|Spain\|Sweden\|Taiwan\|Thailand\|Turkey\|United Kingdom	1
United States\|Argentina\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Czechia\|France\|Hungary\|Japan\|Mexico\|Netherlands\|Peru\|Poland\|Romania\|Russian Federation\|Saudi Arabia\|Spain\|Taiwan\|Vietnam	1
United States\|Argentina\|Brazil\|Bulgaria\|Canada\|China\|Czechia\|Denmark\|Germany\|Hungary\|India\|Japan\|Netherlands\|Poland\|Russian Federation\|Slovakia\|Sweden\|Taiwan\|United Kingdom\|Vietnam	1
United States\|Argentina\|Brazil\|Bulgaria\|Canada\|Denmark\|Italy\|Japan\|Korea, Republic of\|Slovakia\|South Africa\|Sweden	1
United States\|Argentina\|Brazil\|Canada\|Finland	1
United States\|Argentina\|Brazil\|Canada\|Georgia\|Russian Federation	1
United States\|Argentina\|Brazil\|Canada\|Germany\|India\|Italy\|Netherlands\|Poland\|Romania\|Russian Federation\|Singapore\|Spain\|Venezuela	1
United States\|Argentina\|Bulgaria\|Canada\|Czechia\|Germany\|Hungary\|Israel\|Poland\|Romania\|Russian Federation\|Slovakia	1
United States\|Argentina\|Canada\|Czechia\|France\|Germany\|Greece\|Italy\|Japan\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Bulgaria\|Canada\|China\|Czech Republic\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Poland\|Singapore\|Spain\|Sweden\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Chile\|Denmark\|Finland\|France\|Germany\|Greece\|Hungary\|India\|Israel\|Italy\|Malaysia\|Netherlands\|Norway\|Romania\|Saudi Arabia\|Serbia\|Slovakia\|Slovenia\|South Africa\|Spain\|Switzerland\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|China\|Colombia\|Denmark\|Finland\|France\|Germany\|Greece\|India\|Israel\|Italy\|Korea, Republic of\|Lebanon\|Malaysia\|Malta\|Netherlands\|Poland\|Portugal\|Puerto Rico\|Saudi Arabia\|Singapore\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Croatia\|Denmark\|France\|Germany\|Italy\|Japan\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|Denmark\|France\|Italy\|Saudi Arabia	1
United States\|Australia\|Austria\|France\|Germany\|Italy\|Netherlands\|Portugal\|Slovenia\|Spain\|Switzerland\|United Kingdom	1
United States\|Australia\|Belgium\|Bulgaria\|Canada\|Czech Republic\|Finland\|France\|Germany\|Greece\|Hungary\|Italy\|Lithuania\|Netherlands\|Norway\|Poland\|Russian Federation\|Slovakia\|United Kingdom	1
United States\|Australia\|Belgium\|Bulgaria\|Canada\|Czechia\|Germany\|Hungary\|Italy\|Lithuania\|Netherlands\|Poland\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Israel\|Poland\|Spain	1
United States\|Australia\|Belgium\|Netherlands\|United Kingdom	1
United States\|Australia\|Canada\|Israel	1
United States\|Australia\|Canada\|New Zealand	1
United States\|Australia\|Canada\|New Zealand\|Poland	1
United States\|Australia\|Czech Republic\|Finland\|Germany\|Italy\|Netherlands\|Norway\|Romania\|Russian Federation\|Spain\|Sweden\|Turkey	1
United States\|Australia\|Czechia	1
United States\|Australia\|Czechia\|Germany\|Hungary\|Italy\|Norway\|United Kingdom	1
United States\|Australia\|Denmark\|France\|Germany\|Italy\|Netherlands\|United Kingdom	1
United States\|Australia\|New Zealand	1
United States\|Austria\|Belgium\|Bulgaria\|Germany\|Greece\|Israel\|Italy\|Japan\|Poland\|Portugal\|Spain	1
United States\|Austria\|Belgium\|Canada\|Czech Republic\|Denmark\|France\|Germany\|Hungary\|Ireland\|Italy\|Norway\|Spain\|Sweden\|United Kingdom	1
United States\|Austria\|Denmark\|France\|Germany\|Greece\|Israel\|Poland\|Switzerland\|United Kingdom	1
United States\|Belgium\|Argentina\|Australia\|Austria\|Brazil\|Bulgaria\|Canada\|China\|Colombia\|Croatia\|Czechia\|Denmark\|Finland\|France\|Germany\|Greece\|Guatemala\|Hungary\|India\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Norway\|Peru\|Philippines\|Poland\|Romania\|Russian Federation\|Serbia\|Singapore\|Slovakia\|Slovenia\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Turkey\|United Kingdom	1
United States\|Belgium\|Bulgaria\|Germany\|Greece\|Israel\|Italy\|Japan\|Netherlands\|Poland\|Spain	1
United States\|Belgium\|Canada\|Germany\|Israel\|Netherlands\|Poland\|Spain\|Switzerland	1
United States\|Belgium\|Canada\|Italy\|Netherlands	1
United States\|Belgium\|Germany\|Netherlands\|Singapore	1
United States\|Brazil\|Canada\|France\|Germany\|Italy\|Japan\|Spain\|United Kingdom	1
United States\|Bulgaria\|Canada\|Chile\|Hungary\|Korea, Republic of\|Romania\|Russian Federation\|Thailand\|Ukraine	1
United States\|Bulgaria\|Canada\|Croatia\|Czechia\|Israel\|Italy\|Japan\|Korea, Republic of\|Lebanon\|Poland\|Portugal\|Singapore\|South Africa\|Switzerland\|Taiwan\|Thailand\|Turkey	1
United States\|Bulgaria\|Finland\|Germany\|Hungary\|Italy\|Puerto Rico\|Slovakia\|Spain\|Turkey\|United Kingdom	1
United States\|Canada\|China	1
United States\|Canada\|Czech Republic\|Germany\|Italy\|Netherlands\|South Africa\|Sweden	1
United States\|Canada\|France	1
United States\|Canada\|France\|Germany\|Ireland\|Italy\|Japan\|Netherlands\|Spain\|Switzerland\|United Kingdom	1
United States\|Canada\|France\|Germany\|Italy\|Netherlands\|Spain\|Switzerland\|United Kingdom	1
United States\|Canada\|Germany\|Hong Kong\|Italy\|Malaysia\|Netherlands\|Norway\|Spain\|Sweden	1
United States\|Canada\|Hong Kong\|United Kingdom	1
United States\|Canada\|Hungary\|Netherlands\|Poland\|Serbia	1
United States\|Canada\|Italy	1
United States\|Canada\|Italy\|Netherlands	1
United States\|Canada\|Netherlands	1
United States\|Canada\|New Zealand	1
United States\|Canada\|Puerto Rico	1
United States\|Czech Republic\|Georgia\|Germany\|Poland\|Russian Federation\|Ukraine	1
United States\|Czechia\|Germany	1
United States\|Czechia\|Poland	1
United States\|Denmark\|Germany\|Netherlands\|Norway\|Spain	1
United States\|Finland\|Germany\|Netherlands\|Sweden	1
United States\|France\|Germany	1
United States\|France\|Germany\|Netherlands\|Poland\|Sweden\|United Kingdom	1
United States\|France\|Greece\|Poland\|United Kingdom	1
United States\|France\|Italy\|United Kingdom	1
United States\|Georgia\|Russian Federation\|United Kingdom	1
United States\|Germany\|Israel	1
United States\|Germany\|Israel\|Italy\|Netherlands\|Sweden	1
United States\|Germany\|Italy	1
United States\|Germany\|Jordan\|Poland\|Russian Federation	1
United States\|Germany\|Netherlands\|Poland	1
United States\|Germany\|United Kingdom	1
United States\|India	1
United States\|Israel	1
United States\|Israel\|Mexico\|Romania\|Russian Federation\|Ukraine	1
United States\|Japan\|Netherlands\|United Kingdom	1
United States\|Paraguay	1
United States\|Romania	1
United States\|Serbia	1
United States\|Switzerland	1

Sites per Study

Site_count	Study_Count
1	1159
2	130
3	58
4	40
5	23
6	20
7	15
8	10
9	14
10	18
11	11
12	8
13	11
14	6
15	12
16	10
17	9
18	8
19	5
20	5
21	4
22	8
23	5
24	8
25	6
26	5
27	1
28	3
29	1
30	2
31	4
32	4
33	5
34	4
35	5
36	4
37	4
38	2
39	2
40	3
42	3
44	2
45	3
46	1
47	5
48	2
49	1
50	2
51	2
52	3
53	3
54	4
55	1
56	1
58	1
59	2
62	1
64	3
65	2
66	1
67	1
69	2
71	1
72	1
73	1
75	2
76	2
77	1
78	1
79	1
80	1
81	3
82	1
83	1
86	2
90	2
94	2
95	1
97	1
99	1
101	1
102	1
105	2
108	3
109	1
113	1
116	1
118	1
121	1
124	1
125	1
127	1
134	1
137	1
139	1
150	1
154	1
159	1
163	1
166	1
177	1
189	1
190	1
203	1
204	1
213	1
218	1
226	1
231	1
235	1
239	1
267	1
270	1
308	2
331	1
337	1
378	2
397	1
398	1
414	1
417	1
466	1
518	1
542	1
578	1
617	2
754	1
808	2
1034	1

Phase

Phase	Study_Count
N/A	915
Phase 2	237
Phase 4	220
Phase 3	203
Phase 1	86
Phase 1/Phase 2	49
Phase 2/Phase 3	49
Early Phase 1	20

Number of Arms

Number_of_Arms	Count_of_Studies
1	358
2	1028
3	138
4	61
5	15
6	15
7	3
8	2
10	1
NA	158

Number of Updates

Count of Versions	Count of Studies
1	188
2	241
3	226
4	215
5	164
6	142
7	104
8	80
9	65
10	53
11	46
12	37
13	27
14	30
15	10
16	15
17	13
18	15
19	9
20	11
21	7
22	7
23	6
24	8
25	2
26	4
27	3
28	2
29	3
30	5
31	1
32	3
33	3
34	1
35	1
36	3
37	1
39	3
41	2
42	3
46	2
47	1
48	1
49	1
51	1
52	2
55	1
58	2
66	1
67	1
68	1
71	1
80	1
82	1
88	1
90	1
249	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	10812	1591	6.795726
Contacts/Locations	5870	1358	4.322533
Recruitment Status	2430	1378	1.763425
Study Design	1853	1170	1.583761
None (earliest Version on record)	1779	1779	1.000000
Outcome Measures	1384	780	1.774359
Eligibility	1147	681	1.684288
Sponsor/Collaborators	1112	725	1.533793
Arms	1078	711	1.516174
Interventions	1078	711	1.516174
Study Description	1006	612	1.643791
Study Identification	946	602	1.571429
Oversight	751	606	1.239274
References	468	278	1.683453
Conditions	332	244	1.360656
Results	277	277	1.000000
More Information	234	142	1.647887
IPDSharing	193	173	1.115607
Results Submission Events	111	111	1.000000
Documents	84	76	1.105263
Baseline Characteristics	67	59	1.135593
Reported Adverse Events	46	43	1.069767
Participant Flow	37	35	1.057143
2020Recruitment Status	2	2	1.000000
2020 Outcome Measures	1	1	1.000000
2020 Study Status	1	1	1.000000
Quality Control Review has not concludedReturned: February 7	1	1	1.000000
Quality Control Review has not concludedReturned: January 31	1	1	1.000000
Quality Control Review has not concludedReturned: March 30	1	1	1.000000
Quality Control Review has not concludedReturned: May 28	1	1	1.000000

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	5.0	1.000	4.00000	4.000	1.0000	5.0000	1.000	4.0000
1st Qu.	13.0	30.000	12.00000	24.500	30.5000	48.5000	80.000	40.0000
Median	20.5	79.000	25.00000	36.500	69.0000	101.0000	267.000	80.0000
Mean	50.5	563.102	36.77647	67.625	136.6426	229.7708	1330.096	558.0323
3rd Qu.	42.5	209.500	49.00000	60.000	160.0000	276.0000	1009.000	304.0000
Max.	300.0	197692.000	150.00000	1000.000	2135.0000	2200.0000	25875.000	50000.0000

Trial Group Type

group_type	Group_Count
Experimental	1571
Active Comparator	782
Placebo Comparator	386
No Intervention	292
Other	219
NA	158
Sham Comparator	34

Intervention Model

intervention_model	Study_Count
Parallel Assignment	1143
Single Group Assignment	429
Crossover Assignment	137
Factorial Assignment	32
Sequential Assignment	21
NA	17

Primary Purpose

primary_purpose	Study_Count
Treatment	1176
Supportive Care	140
Diagnostic	114
Prevention	89
Health Services Research	71
Other	62
NA	56
Basic Science	51
Device Feasibility	10
Screening	8
Educational/Counseling/Training	2

Observational Studies

Studies by Country

Country	Study_Count
United States	213
NA	66
Germany	49
France	30
Italy	26
United Kingdom	24
Canada	15
China	14
Israel	14
Spain	11
Netherlands	10
Australia	7
Denmark	6
Korea, Republic of	6
Sweden	6
Poland	5
Switzerland	5
Taiwan	5
Turkey	5
Greece	4
Japan	4
Austria	3
Brazil	3
Singapore	3
Belgium	2
Croatia	2
Egypt	2
Finland	2
Indonesia	2
Norway	2
Russian Federation	2
Tunisia	2
United States\|Canada	2
United States\|Canada\|Germany	2
United States\|Israel	2
Australia\|Austria\|Canada\|Czechia\|Germany\|Kazakhstan	1
Australia\|Belgium\|Denmark\|France\|United Kingdom	1
Austria\|Belgium\|Canada\|France\|Italy\|United States\|Netherlands\|Spain	1
Austria\|Belgium\|Denmark\|Germany\|Hong Kong	1
Austria\|Czech Republic\|France\|Germany\|Israel\|Italy\|Latvia\|Netherlands\|Spain\|United Kingdom	1
Austria\|Denmark\|Finland\|Germany\|Italy\|Latvia\|Netherlands\|Singapore\|Spain\|Switzerland\|United Kingdom	1
Austria\|Germany\|Hungary	1
Austria\|Hungary\|North Macedonia\|Poland\|Serbia\|Spain	1
Bangladesh	1
Belgium\|France	1
Belgium\|Spain\|Switzerland	1
China\|Hong Kong\|India\|Indonesia\|Japan\|Korea, Republic of\|Malaysia\|Philippines\|Singapore\|Thailand	1
Czechia	1
Denmark\|France\|Germany	1
Denmark\|France\|Germany\|Netherlands\|Sweden\|United Kingdom	1
Former Serbia and Montenegro\|Belgium\|India\|Kuwait\|Russian Federation\|Saudi Arabia	1
France\|Germany	1
France\|Lithuania	1
France\|Sweden	1
Germany\|Switzerland	1
Hungary	1
India	1
Italy\|Spain	1
Oman	1
Pakistan	1
Romania	1
Slovenia	1
Thailand	1
United States\|Argentina\|Colombia\|Japan	1
United States\|Australia	1
United States\|Australia\|Belgium\|Canada\|Denmark\|France\|Germany\|Hong Kong\|Ireland\|Italy\|Netherlands\|Spain\|United Kingdom	1
United States\|Austria\|Belgium\|Denmark\|Finland\|France\|Germany\|Hong Kong\|Italy\|Netherlands\|Norway\|Spain\|United Kingdom	1
United States\|Austria\|France\|Germany	1
United States\|Austria\|Germany	1
United States\|Belgium\|Canada\|France\|Germany\|Italy\|Netherlands\|Sweden\|Switzerland\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Netherlands\|Switzerland\|United Kingdom	1
United States\|Belgium\|Canada\|Germany\|Japan\|Poland\|Portugal	1
United States\|Belgium\|Greece\|Italy\|Switzerland\|United Kingdom	1
United States\|Bulgaria\|Canada\|Czech Republic\|France\|Germany\|Italy\|Russian Federation\|Sweden	1
United States\|Canada\|China\|France\|Germany\|Hong Kong\|India\|Malaysia\|Malta\|Pakistan\|Poland\|Puerto Rico\|Romania\|Singapore\|Taiwan\|Thailand	1
United States\|Canada\|Israel\|Singapore\|United Kingdom	1
United States\|Canada\|United Kingdom	1
United States\|Croatia	1
United States\|Czech Republic\|Germany\|Hong Kong\|Hungary\|Israel\|Italy\|Malaysia\|Netherlands\|Slovakia\|Thailand\|United Kingdom	1
United States\|Germany\|Greece\|Italy\|New Zealand\|Poland\|Switzerland\|United Kingdom	1
United States\|Germany\|Hong Kong\|Italy\|Poland	1
United States\|Greece\|Ireland\|Italy\|Netherlands\|Spain\|Switzerland	1
United States\|India\|Sweden	1
United States\|Italy	1
United States\|Netherlands\|Switzerland	1

Sites per Study

Site_count	Study_Count
1	422
2	44
3	19
4	17
5	13
6	7
7	8
8	5
9	1
10	4
11	2
12	3
13	4
14	2
15	4
16	2
17	1
18	1
19	4
20	1
21	1
23	1
24	2
25	2
27	1
28	1
29	1
32	2
33	1
34	2
41	1
45	1
51	1
52	3
60	3
64	1
67	1
71	1
77	1
82	2
86	1
88	1
93	1
99	2
103	1
105	1
108	1
112	1
128	1
129	1
144	1
343	1

Number of Updates

Count of Versions	Count of Studies
1	80
2	117
3	96
4	80
5	64
6	39
7	24
8	31
9	19
10	11
11	7
12	7
13	9
14	6
15	2
17	3
19	2
20	1
26	1
27	2
32	1
33	1
51	1
58	1
83	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	2389	526	4.541825
Contacts/Locations	946	409	2.312958
Recruitment Status	685	436	1.571101
None (earliest Version on record)	606	606	1.000000
Study Design	540	375	1.440000
Sponsor/Collaborators	311	214	1.453271
Eligibility	249	172	1.447674
Study Description	242	160	1.512500
Study Identification	218	157	1.388535
Outcome Measures	191	149	1.281879
Groups	157	116	1.353448
Interventions	157	116	1.353448
Oversight	137	119	1.151261
References	108	61	1.770492
Conditions	80	58	1.379310
IPDSharing	58	57	1.017544
Results	30	30	1.000000
More Information	18	14	1.285714
Results Submission Events	16	16	1.000000
Documents	10	9	1.111111
Baseline Characteristics	4	4	1.000000
Participant Flow	2	2	1.000000
Reported Adverse Events	2	2	1.000000

Enrollment Metrics

Measure	Observational
Min	1.00
1st Qu	60.00
Median	180.00
Mean	14746.72
3rd Qu	581.25
Max	2240000.00

Observation Model

observational_model	Study_Count
Cohort	356
Case-Only	81
NA	49
Other	40
Case-Control	37
Case Control	30
Case-Crossover	5
Defined Population	3
Ecologic or Community	3
Defined Population, Natural History	2

Time Perspective

time_perspective	Study_Count
Prospective	461
Retrospective	72
Cross-Sectional	33
NA	24
Other	11
Longitudinal, Prospective	3
Cross-Sectional, Prospective	1
Longitudinal, Retrospective	1

Registries

Studies by Country

Country	Study_Count
United States	15
Germany	13
Italy	8
Israel	5
NA	5
Canada	4
China	4
France	4
Poland	3
Japan	2
Korea, Republic of	2
Netherlands	2
Russian Federation	2
Singapore	2
Spain	2
Switzerland	2
Tunisia	2
United Kingdom	2
Australia\|Austria\|Belgium\|Denmark\|Finland\|Germany\|Italy\|Kazakhstan\|Lebanon\|Netherlands\|Norway\|Poland\|Serbia\|Spain\|Switzerland\|Turkey\|United Kingdom	1
Australia\|Germany	1
Austria	1
Austria\|Australia\|Belgium\|Czechia\|France\|Germany\|Hungary\|Israel\|Latvia\|Poland\|Portugal\|Singapore\|Slovakia\|South Africa\|Spain\|Switzerland\|Taiwan\|United Kingdom	1
Austria\|Belgium\|Colombia\|Denmark\|Finland\|France\|Germany\|Hong Kong\|Ireland\|Israel\|Italy\|Japan\|Netherlands\|Portugal\|Singapore\|Spain\|Switzerland\|United Kingdom	1
Colombia	1
Germany\|Hungary\|Italy\|Kazakhstan\|Netherlands\|Turkey\|United Kingdom	1
Germany\|Italy	1
Germany\|Italy\|Poland\|Russian Federation\|Slovenia\|United Kingdom	1
Germany\|Sweden\|Switzerland	1
Hungary	1
Kuwait	1
Mexico	1
Sweden	1
Turkey	1
Uganda	1
United States\|Argentina\|Brazil\|China\|Colombia\|India\|Japan\|Korea, Republic of\|Puerto Rico	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|France\|Germany\|Italy\|Netherlands\|Portugal\|Slovakia\|Spain\|Switzerland\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Denmark\|Former Serbia and Montenegro\|France\|Germany\|Italy\|Netherlands\|Spain\|Sweden\|Switzerland	1
United States\|Austria\|Germany\|Poland	1
United States\|Belgium\|Canada\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|Malaysia\|Netherlands\|Slovakia\|Spain\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Italy\|Korea, Republic of\|Malaysia\|Netherlands\|Serbia\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|France\|Germany\|Italy\|Korea, Republic of\|Malaysia\|Spain\|Sweden\|United Kingdom	1

Sites per Study

Site_count	Study_Count
1	71
2	2
5	3
6	1
8	1
9	1
11	2
12	1
13	1
16	1
17	1
19	1
21	1
22	1
31	1
32	1
33	1
34	1
48	1
69	1
77	1
79	1
83	1
106	1
123	1
130	1
139	1
199	1

Number of Updates

Count of Versions	Count of Studies
1	19
2	16
3	17
4	11
5	15
6	4
7	7
8	1
10	2
11	2
12	1
13	2
14	1
20	1
26	1
28	1
54	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	418	83	5.036145
Contacts/Locations	235	62	3.790323
None (earliest Version on record)	102	102	1.000000
Recruitment Status	84	54	1.555556
Study Design	53	39	1.358974
Study Description	47	22	2.136364
Outcome Measures	44	29	1.517241
Eligibility	31	19	1.631579
Sponsor/Collaborators	25	19	1.315789
Oversight	24	19	1.263158
Study Identification	20	16	1.250000
Groups	13	10	1.300000
Interventions	13	10	1.300000
Conditions	12	10	1.200000
References	12	10	1.200000
IPDSharing	9	8	1.125000
Results	4	4	1.000000
Results Submission Events	4	4	1.000000
Documents	3	3	1.000000

Enrollment Metrics

Measure	Registries
Min	10.0
1st Qu	200.0
Median	610.0
Mean	107147.9
3rd Qu	2030.0
Max	7205000.0

Registry Model

observational_model	Study_Count
Cohort	81
Case-Only	10
Other	5
Case-Control	4
Case-Crossover	1
NA	1

Time Perspective

time_perspective	Study_Count
Prospective	91
Other	6
Cross-Sectional	4
Retrospective	1

Follow-up

target_duration	Study_Count
12 Months	14
1 Year	12
5 Years	11
3 Years	10
2 Years	9
1 Day	8
10 Years	6
6 Months	5
3 Months	3
1 Month	2
18 Months	2
24 Months	2
4 Weeks	2
5 Days	2
8 Years	2
1 Week	1
12 Years	1
15 Years	1
3 Days	1
30 Days	1
30 Months	1
376 Days	1
4 Months	1
4 Years	1
50 Years	1
6 Years	1
7 Months	1

intervention_type	Study_Count
Device	344
Drug	332
Drug\|placebo	285
Other	241
Behavioral	218
Procedure	88
Device\|Other	34
Drug\|Other	22
Biological	20
Behavioral\|Other	18
Diagnostic Test	18
Dietary Supplement	18
Drug\|Procedure	17
Dietary Supplement\|placebo	15
Device\|Drug	14
Device\|Procedure	12
Other\|Procedure	9
Biological\|placebo	6
Other\|placebo	6
Biological\|Other	5
Behavioral\|Drug	4
Combination Product	4
Dietary Supplement\|Other	4
Drug\|Other\|placebo	4
Behavioral\|Device	3
Radiation	3
Behavioral\|Procedure	2
Biological\|Drug	2
Biological\|Procedure	2
Combination Product\|Other	2
Device\|Diagnostic Test	2
Genetic\|placebo	2
Behavioral\|Diagnostic Test\|Other	1
Behavioral\|Dietary Supplement	1
Behavioral\|Dietary Supplement\|Other	1
Behavioral\|placebo	1
Biological\|Device	1
Biological\|Diagnostic Test	1
Device\|Diagnostic Test\|Procedure	1
Device\|Drug\|Other	1
Device\|Drug\|Other\|placebo	1
Device\|Drug\|Procedure	1
Device\|Other\|Procedure	1
Device\|placebo	1
Device\|Radiation	1
Diagnostic Test\|Drug	1
Diagnostic Test\|Drug\|placebo	1
Diagnostic Test\|Other	1
Diagnostic Test\|Procedure	1
Diagnostic Test\|Procedure\|Radiation	1
Dietary Supplement\|Drug\|placebo	1
Drug\|Genetic\|Other\|placebo\|Procedure	1
Drug\|Other\|placebo\|Procedure\|Radiation	1
Other\|Radiation	1
placebo	1

Count of Versions	Count of Studies
1	188
2	241
3	226
4	215
5	164
6	142
7	104
8	80
9	65
10	53
11	46
12	37
13	27
14	30
15	10
16	15
17	13
18	15
19	9
20	11
21	7
22	7
23	6
24	8
25	2
26	4
27	3
28	2
29	3
30	5
31	1
32	3
33	3
34	1
35	1
36	3
37	1
39	3
41	2
42	3
46	2
47	1
48	1
49	1
51	1
52	2
55	1
58	2
66	1
67	1
68	1
71	1
80	1
82	1
88	1
90	1
249	1

Site_count	Study_Count
1	422
2	44
3	19
4	17
5	13
6	7
7	8
8	5
9	1
10	4
11	2
12	3
13	4
14	2
15	4
16	2
17	1
18	1
19	4
20	1
21	1
23	1
24	2
25	2
27	1
28	1
29	1
32	2
33	1
34	2
41	1
45	1
51	1
52	3
60	3
64	1
67	1
71	1
77	1
82	2
86	1
88	1
93	1
99	2
103	1
105	1
108	1
112	1
128	1
129	1
144	1
343	1

Count of Versions	Count of Studies
1	80
2	117
3	96
4	80
5	64
6	39
7	24
8	31
9	19
10	11
11	7
12	7
13	9
14	6
15	2
17	3
19	2
20	1
26	1
27	2
32	1
33	1
51	1
58	1
83	1

Site_count	Study_Count
1	71
2	2
5	3
6	1
8	1
9	1
11	2
12	1
13	1
16	1
17	1
19	1
21	1
22	1
31	1
32	1
33	1
34	1
48	1
69	1
77	1
79	1
83	1
106	1
123	1
130	1
139	1
199	1

Count of Versions	Count of Studies
1	188
2	241
3	226
4	215
5	164
6	142
7	104
8	80
9	65
10	53
11	46
12	37
13	27
14	30
15	10
16	15
17	13
18	15
19	9
20	11
21	7
22	7
23	6
24	8
25	2
26	4
27	3
28	2
29	3
30	5
31	1
32	3
33	3
34	1
35	1
36	3
37	1
39	3
41	2
42	3
46	2
47	1
48	1
49	1
51	1
52	2
55	1
58	2
66	1
67	1
68	1
71	1
80	1
82	1
88	1
90	1
249	1

Site_count	Study_Count
1	422
2	44
3	19
4	17
5	13
6	7
7	8
8	5
9	1
10	4
11	2
12	3
13	4
14	2
15	4
16	2
17	1
18	1
19	4
20	1
21	1
23	1
24	2
25	2
27	1
28	1
29	1
32	2
33	1
34	2
41	1
45	1
51	1
52	3
60	3
64	1
67	1
71	1
77	1
82	2
86	1
88	1
93	1
99	2
103	1
105	1
108	1
112	1
128	1
129	1
144	1
343	1

Count of Versions	Count of Studies
1	80
2	117
3	96
4	80
5	64
6	39
7	24
8	31
9	19
10	11
11	7
12	7
13	9
14	6
15	2
17	3
19	2
20	1
26	1
27	2
32	1
33	1
51	1
58	1
83	1

Site_count	Study_Count
1	71
2	2
5	3
6	1
8	1
9	1
11	2
12	1
13	1
16	1
17	1
19	1
21	1
22	1
31	1
32	1
33	1
34	1
48	1
69	1
77	1
79	1
83	1
106	1
123	1
130	1
139	1
199	1

heart failure

Study Counts

Studies over Time

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Number of Updates

Update History Change Type

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Count of Versions	Count of Studies
1	188
2	241
3	226
4	215
5	164
6	142
7	104
8	80
9	65
10	53
11	46
12	37
13	27
14	30
15	10
16	15
17	13
18	15
19	9
20	11
21	7
22	7
23	6
24	8
25	2
26	4
27	3
28	2
29	3
30	5
31	1
32	3
33	3
34	1
35	1
36	3
37	1
39	3
41	2
42	3
46	2
47	1
48	1
49	1
51	1
52	2
55	1
58	2
66	1
67	1
68	1
71	1
80	1
82	1
88	1
90	1
249	1

Site_count	Study_Count
1	422
2	44
3	19
4	17
5	13
6	7
7	8
8	5
9	1
10	4
11	2
12	3
13	4
14	2
15	4
16	2
17	1
18	1
19	4
20	1
21	1
23	1
24	2
25	2
27	1
28	1
29	1
32	2
33	1
34	2
41	1
45	1
51	1
52	3
60	3
64	1
67	1
71	1
77	1
82	2
86	1
88	1
93	1
99	2
103	1
105	1
108	1
112	1
128	1
129	1
144	1
343	1

Count of Versions	Count of Studies
1	80
2	117
3	96
4	80
5	64
6	39
7	24
8	31
9	19
10	11
11	7
12	7
13	9
14	6
15	2
17	3
19	2
20	1
26	1
27	2
32	1
33	1
51	1
58	1
83	1

Site_count	Study_Count
1	71
2	2
5	3
6	1
8	1
9	1
11	2
12	1
13	1
16	1
17	1
19	1
21	1
22	1
31	1
32	1
33	1
34	1
48	1
69	1
77	1
79	1
83	1
106	1
123	1
130	1
139	1
199	1